i wonder why deep idle is removed in every updated kernel...anyone has the answer...?i think deep idle is one good tweak in saving battery while we close our eyes sleeping..
Because some say it didn't work.. I dont know, because I didnt know what it did before it was removed
Greetzz, Jojoost.
Sent from my Nexus S using XDA App
..
is it?i think its work for me...without it, my battery drain quickly like 20 to 30% while in idle mode...i hv to recharge it back after i wake up in the morning...i think one of the problem is the ics 4.0.3 right...bcoz in ics 4.0.1 deep idle seems to be working fine and my battery last 20 hours with it..
mijul mojas said:
i wonder why deep idle is removed in every updated kernel...anyone has the answer...?i think deep idle is one good tweak in saving battery while we close our eyes sleeping..
Click to expand...
Click to collapse
Deep idle did Not conserve battery while the phone is inactive - it only reduces power consumption while the screen is off and the phone is playing music, etc.
Have you ever actually read about the function and purpose of deep idle? CpuIdle seems to have replaced it.
mijul mojas said:
i wonder why deep idle is removed in every updated kernel...anyone has the answer...?i think deep idle is one good tweak in saving battery while we close our eyes sleeping..
Click to expand...
Click to collapse
Ok, for one deep sleep is where phone should be when it is not used.
I always wanted to ask: whatever happened to this crazy idea of charging the phone when it is on some desk in the house for a few hours?
I am fairly certain you will find your phone is awake when you sleep, doing stuff it shouldn't be doing.
When it is just laying on the desk, a drain of 5-10% /hour means it is not in deep sleep, something on rom or apps is broken. deep idle would not fix that, deep idle may however help mask the real problem that keeps the phone from reaching deep sleep.
deep idle, the way you use it is like buying a can of flat fix for the car tire but leaving the object that still sticks out 2" beyond your tread in the tire, causing continued damage to the tire, it gets you by, but won't last forever and the guy who really fixes your flat will not smile at you once he sees the sticky inside of your wheel.
Related
Battery drainage has been a major frustration for me with my phone. The frustration stems from the many variables associated with battery drainage. For the most part the terrible battery drainage started after flashing the modified ROMs. I believe the stock ROM was respectable when it came to battery drainage.
I am not ignorant to flashing ROMs. I have tried everything to figure out this battery problem; everything to keeping stock kernals, to battery calibration (delete battery stats), to battery bump charging, to matching radio files with RILs, to limiting data syncing, charge cycles etc.
But I am noticing that some of you are able to get good battery usage from a single charge with these modified ROMs. With that said, I want to cut the variables down and see what those folks who are getting over a day's worth of battery usage from a single charge are doing. The best indicator for battery usage to limit variables would be the battery usage standby rate with data network on.
I am not getting any better than 8%/hour on standby for any of these ROMs. That is crap. I wake up in the morning after 8 hours and there is only ~35% battery left. Unacceptable. I figure no more than 10% should be lost in 8 hours of standby.
So for those who have good battery usage, please answer the following questions so that we can eliminate all the variables.
1. What is your standby battery drainage rate?
2. What version phone do you have (TMoUS or EUR)?
3. Clockwork Recovery version?
4. What ROM are you using?
4. What Radio and RILs are you using?
5. How many charge cycles are you doing after the battery calibration and before you are getting the good standby rate?
6. Are you using any battery saving applications?
Please help if you can. Everyone seems to emphasize speed and performance but battery life is number one priority for any phone in my opinion.
Thanks
I'm currently running the P3D Neon ROM. I was having the same issues you are having due to flashing a new ROM jsut about every day. The big thing I noticed is that the longer I stayed with the one ROM the better my battery was. But as I'm sure you already know that no matter what a smartphone is a battery hog anyway.
By the way have you tried this, I am using it and love it !
http://forum.xda-developers.com/showthread.php?t=1128568
Tmobile model sensation
Latest radio with .56
Latest LeeDroid
Anker battery
Latest cwm
Do a charge cycle every time my battery dies
I use battery calibration app from market
No battery saving apps
Standby I have no clue lol it sometimes doesn't budge but sometimes I get 1% every hour and 1/2
Light use I get 26+ hours.
Medium I get 16+
Heavy I get 9+
Hope that helps.
Sent from my HTC Sensation Z710e using XDA Premium App
I've had my phone a week and am using stock Rom. I've S-Off, Root and install backup. Overnite, the battery only goes down 5%
If I were u, I'd get Android Assistant from the Market and check that all apps are closed. Check ur start-up apps and clear ur cache before u shut down ur phone.
Sent from my HTC Sensation
More than likely, there are apps that are not allowing the phone to sleep when the screen is off. CPUstats will show you how long your phone has been in deep sleep, as well as your CPU clock speed.
Here is what I would try out:
1-Get CPUstats.
2-Turn off the screen for the night
3-Check to see how long the phone was in deep sleep mode. It should have been for awhile if not, you have a rogue app that is bothering your phone while it sleeps.
To check your standby current:
So far, we cannot accurately see what it is. I dont know of any app that can for our phones. I do know that the values I see cannot be correct, otherwise my phone wouldnt be lasting long.
1-Write down your current battery capacity in mA/Hrs.
2-Write down the time that you put your phone into sleep.
3-Leave it off for an hour.
4-Wake it up and check the new battery capacity.
An Example:
I started with 1900mA/Hr.
I let it sleep for 1 hour.
I found that after an hour, I was down to 1850mA/Hr. That is 50mA gone, over 1 hour time. So my standby current was 50mA/Hrs.
Now this is only a crude way of judging whether or not your phone is behaving. Since the battery apps update capacity every 5 mins or so, you may not be right on the money, but you WILL know if something is BAD. Calculating 50mA +/- 20mA means the phone is likely sleeping as it should. Calculating 300mA+/- 20mA means something is USING your phone without your permission.
Youll need to find out if some apps are syncing (or trying to sync) while it sleeps. Or, your phone may be trying to improve your signal strength.
Matt
The anker battery will help but it is not solving the problem. We need to be getting around 1-2%/hour standby drain like some of you guys are getting.
mrg02d said:
More than likely, there are apps that are not allowing the phone to sleep when the screen is off. CPUstats will show you how long your phone has been in deep sleep, as well as your CPU clock speed.
Here is what I would try out:
1-Get CPUstats.
2-Turn off the screen for the night
3-Check to see how long the phone was in deep sleep mode. It should have been for awhile if not, you have a rogue app that is bothering your phone while it sleeps.
To check your standby current:
So far, we cannot accurately see what it is. I dont know of any app that can for our phones. I do know that the values I see cannot be correct, otherwise my phone wouldnt be lasting long.
1-Write down your current battery capacity in mA/Hrs.
2-Write down the time that you put your phone into sleep.
3-Leave it off for an hour.
4-Wake it up and check the new battery capacity.
An Example:
I started with 1900mA/Hr.
I let it sleep for 1 hour.
I found that after an hour, I was down to 1850mA/Hr. That is 50mA gone, over 1 hour time. So my standby current was 50mA/Hrs.
Now this is only a crude way of judging whether or not your phone is behaving. Since the battery apps update capacity every 5 mins or so, you may not be right on the money, but you WILL know if something is BAD. Calculating 50mA +/- 20mA means the phone is likely sleeping as it should. Calculating 300mA+/- 20mA means something is USING your phone without your permission.
Youll need to find out if some apps are syncing (or trying to sync) while it sleeps. Or, your phone may be trying to improve your signal strength.
Matt
Click to expand...
Click to collapse
I like this test, I will check it out.
Quite curious as I am under the assumption that when the phone is in DEEP SLEEP, the CPU is powered down to conserve battery. However, if BLN is active with blink notification how is blinking controlled?
On a related note, does no blinking save or not save any battery life?
EDIT: Sorry, I meant DEEP SLEEP. DEEP IDLE is so frequently used on the forums I mistaked it in this post.
AeroEchelon said:
Quite curious as I am under the assumption that when the phone is in DEEP IDLE, the CPU is powered down to conserve battery. However, if BLN is active with blink notification how is blinking controlled?
On a related note, does no blinking save or not save any battery life?
Click to expand...
Click to collapse
first of all, i think you dont understand what deep idle is. deep idle is a very low power state where your cpu IS active. for example, its used when you are listening to music with your screen off. deep sleep is when your cpu is in a hibernating state, when your phone isnt active and the screen is off. deep sleep is the ideal state to save battery. but when your cpu is active, deep sleep isnt possible. the next step up is deep idle(not all kernels have this as it also is guilty of causing issues for some phones). when the soft keys are blinking, this does wake your phone from deep sleep.
simms22 said:
first of all, i think you dont understand what deep idle is. deep idle is a very low power state where your cpu IS active. for example, its used when you are listening to music with your screen off. deep sleep is when your cpu is in a hibernating state, when your phone isnt active and the screen is off. deep sleep is the ideal state to save battery. but when your cpu is active, deep sleep isnt possible. the next step up is deep idle(not all kernels have this as it also is guilty of causing issues for some phones). when the soft keys are blinking, this does wake your phone from deep sleep.
Click to expand...
Click to collapse
Ahh! That was my mistake. I definitely do know what DEEP IDLE is. I meant DEEP SLEEP. (I know it doesn't help when I put it in caps.) DEEP IDLE is an additional state introduced by Ezekeel as an intermediate state between DEEP SLEEP and IDLE. I understand.
Regarding my question, does that mean your phone is not in sleep while blinking is occuring? It seems like such a waste of battery.
AeroEchelon said:
Ahh! That was my mistake. I definitely do know what DEEP IDLE is. I meant DEEP SLEEP. (I know it doesn't help when I put it in caps.) DEEP IDLE is an additional state introduced by Ezekeel as an intermediate state between DEEP SLEEP and IDLE. I understand.
Regarding my question, does that mean your phone is not in sleep while blinking is occuring? It seems like such a waste of battery.
Click to expand...
Click to collapse
thats one reason i dont use it. the other is that i would rather check for notification on my time
simms22 said:
thats one reason i dont use it. the other is that i would rather check for notification on my time
Click to expand...
Click to collapse
Thanks simms22 for your quick response.
Actually on the topic of deep idle, it seems if the CPU was active to blink the LEDs, deep idle state seems like the perfect candidate.
AeroEchelon said:
Thanks simms22 for your quick response.
Actually on the topic of deep idle, it seems if the CPU was active to blink the LEDs, deep idle state seems like the perfect candidate.
Click to expand...
Click to collapse
it could very well be, but maybe not
Blinking keeps the phone awake (excessive battery drain, deep idle helps but it's not worth it still). If you keep it static and on, the phone will happily go into deep sleep (this is how i set mine up).
You can test this with CPU Spy if you like, these are my findings.
Hey everyone,
I recently upgraded to android ICS 4.0.4 from 4.0.3 with the hope of the battery issue no longer an issue with my nexus s...
Though my battery drains around 1% every 2-4minutes with normal use, as in just scrolling and going through settings (not using apps), very very light use. I have factory wiped it , I have installed new roms and kernels - mixed and matched, uninstalled apps and installed apps one at a time (to see what drains), I even disabled some the high % wasting applications...
My screen dim is on the lowest, wifi is off, data is off, sync is off, gps is off, screen rotation is off, yet still no improvement, I even fully discharged my battery and re-charged it (while phone is off)- no improvement. And i also changed the CPU settings to 800max and still no improvement.
and when i'm playing a game or something it drops around 10% in ten - fifteen minutes, sometimes drops more.
When my screen is sleeping it takes around 1-2% every 1 hour-2hours, which I think is normal.
My screen is usually 45-50% Battery used by the display and backlight
Android system is usually 15%-20%
Android OS is usually 3%-10%
My battery is only about 4-5 months old, and I've always charge it when its 5-10% left, I don't let it die. I'm going to purchase a new battery to see if the problem occurs, if it does, can it be something with the phone hardware?
But any suggestion on what it is?
I've looked around on forums etc and none of the solutions have worked.
The display is going to use the most. There is no way around it. What are your average use times? If you're only losing a few % an hour idling, that's great! The only things I can think that would help is using black backgrounds whenever possible. You also have to keep in mind you're gaming with your phone and that's CPU intensive, which will cause more drain.
Sent by pocket technology
Delete..........
The display is going to use the most. There is no way around it. What are your average use times? If you're only losing a few % an hour idling, that's great! The only things I can think that would help is using black backgrounds whenever possible. You also have to keep in mind you're gaming with your phone and that's CPU intensive, which will cause more drain.
Click to expand...
Click to collapse
Yeah the display will use the most, but I remember it used to be around 30-35%, I've just been seeing how the battery is lately - just going through settings etc and it goes down every 2-3 minutes by 1%, it used to last much longer than that - 1% every ten mins. Sad thing is - I do use a black background lol to save battery and with games I hardly play them but when I do bye bye battery.
try battery callibration apk from market before you recharge your phone and no use 3g just 2g and make conservative 100/1000 the governor.
Click to expand...
Click to collapse
I'll try the battery calibration and see how that goes, and change the governor as well to see if any improvement.
J.Jon said:
Hey everyone,
I recently upgraded to android ICS 4.0.4 from 4.0.3 with the hope of the battery issue no longer an issue with my nexus s...
Though my battery drains around 1% every 2-4minutes with normal use, as in just scrolling and going through settings (not using apps), very very light use. I have factory wiped it , I have installed new roms and kernels - mixed and matched, uninstalled apps and installed apps one at a time (to see what drains), I even disabled some the high % wasting applications...
My screen dim is on the lowest, wifi is off, data is off, sync is off, gps is off, screen rotation is off, yet still no improvement, I even fully discharged my battery and re-charged it (while phone is off)- no improvement. And i also changed the CPU settings to 800max and still no improvement.
and when i'm playing a game or something it drops around 10% in ten - fifteen minutes, sometimes drops more.
When my screen is sleeping it takes around 1-2% every 1 hour-2hours, which I think is normal.
My screen is usually 45-50% Battery used by the display and backlight
Android system is usually 15%-20%
Android OS is usually 3%-10%
My battery is only about 4-5 months old, and I've always charge it when its 5-10% left, I don't let it die. I'm going to purchase a new battery to see if the problem occurs, if it does, can it be something with the phone hardware?
But any suggestion on what it is?
I've looked around on forums etc and none of the solutions have worked.
Click to expand...
Click to collapse
Yesterday morning i charged it full 100%. I took it off the charger and left it on the table. It had no wifi or games running at all( at about 8 am) I leave it there all day until about 6 or so. and when i come back its down to 30% WTF IS THAT!. On my dads phone he could have 1% battery and leave it standing by all day and night and he can still turn it on without losing the last percent. Its not an iphone either. Hopefully 4.1 Jelly Bean will have some battery fix for the nexus
BetterBatteryStats. Your best friend when it comes to battery life.
Yeah. Mine isn't bad, but I also just go by my screen usage. If can't get at least 3 hours by the end of the day(which is probably 13 hours), then something is up. Note on calibration, it won't do anything. Those stats are reset once the phone is charged past 90% IIRC. On top of that, our batteries have a different way of reporting the charge. It's not the same as htcs.
Sent by pocket technology
I managed to get my screen down to 40ish% and my Android system is under 10% and I've been timing my battery and noticed every 4minutes exactly it still goes down. I tried calibration does nothing as you said. I'm gonna download betterbatterystats and I have cpu spy running atm...
Sent from my Nexus S using xda app-developers app
CooLoserTech said:
Yesterday morning i charged it full 100%. I took it off the charger and left it on the table. It had no wifi or games running at all( at about 8 am) I leave it there all day until about 6 or so. and when i come back its down to 30% WTF IS THAT!. On my dads phone he could have 1% battery and leave it standing by all day and night and he can still turn it on without losing the last percent. Its not an iphone either. Hopefully 4.1 Jelly Bean will have some battery fix for the nexus
Click to expand...
Click to collapse
If we even get jellybean
Sent from my Nexus S using xda app-developers app
J.Jon said:
If we even get jellybean
Sent from my Nexus S using xda app-developers app
Click to expand...
Click to collapse
xda will do it!
I have the same issues. 10 hours max not touching the phone at all. Stock, custom, matrix, nothing helps.
Maybe 6 hours if I start using it moderately
Sent from my Nexus S using xda premium
Similar issue here. Tried all combinations of ROMs (jb,ics,gb) and kernels (air,marmite,matr1x,lucid) to no avail. Even reverted back to stock GB ROM, radio, and bootloader. Nowhere near 6 hours talk time or 200 hours standby time. I get between 8-10 hours standby time if I'm lucky. I even tried turning the phone off overnight, with a full charge even, and when I went to turn it back on in the morning the battery was dead and I had to plug it in to turn it on.
I picked up a new battery today but the issue seems to persist. I put the new battery in at noon with 98% charge and now 2.5 hours later I'm down to 70%. I am convinced there is a hardware problem that is causing the battery to drain excessively. GSAM Battery Monitor and stock battery stats all look normal with screen using the most battery followed by Android System etc etc. Aside from the battery problem, the phone is awesome and I really don't want to have to buy a GNex when this phone is still salvageable.
So what part of this phone could drain the battery so fast with the screen off? It could be the CPU, GPU, screen digitizer perhaps?
I know you tried with your old battery, but could you try again with the new battery with your phone turned completely off? If there's a drain, then there's definitely a hardware issue.
polobunny said:
I know you tried with your old battery, but could you try again with the new battery with your phone turned completely off? If there's a drain, then there's definitely a hardware issue.
Click to expand...
Click to collapse
Phone off for half hour yielded a 9% drop in battery life. I'll keep the responses in this thread only. I just realized every time I respond to a thread it gets bumped to the top of the forum!
dgw2jr said:
Phone off for half hour yielded a 9% drop in battery life. I'll keep the responses in this thread only. I just realized every time I respond to a thread it gets bumped to the top of the forum!
Click to expand...
Click to collapse
Definitely something wrong. I don't lose anything with phone off, so something is messing up hardware wise. Did the phone get water damage?
My phone half of the time stays at 400MHz.
Is that normal?
even when is idle and screen is switched off. battery life is not that good though i am not sure if it should be better on an S6,
I am rooted and I have uniKernel.
Note that I do have Deep sleep but only like half of the time even when my phone display is off.
Phone CPUs adjusts their speed depending upon the need to conserve power.
bebseh said:
My phone half of the time stays at 400MHz.
Is that normal?
even when is idle and screen is switched off. battery life is not that good though i am not sure if it should be better on an S6,
I am rooted and I have uniKernel.
Note that I do have Deep sleep but only like half of the time even when my phone display is off.
Click to expand...
Click to collapse
If you mean you have no deep sleep you can root and download BetterBatteryStats or Wakelock detector to see what is causing the wakelocks.
GSM battery monitor works without root, but you can't see the wakelocks, but you can see what apps are draining your battery.
Faspaiso said:
If you mean you have no deep sleep you can root and download BetterBatteryStats or Wakelock detector to see what is causing the wakelocks.
GSM battery monitor works without root, but you can't see the wakelocks, but you can see what apps are draining your battery.
Click to expand...
Click to collapse
Hello
I do have deep sleep, pbbly +50% of the time,
However it does spend quite some time in 400mhz even when is idle.
is this normak ? i dont remember seeing the same behavior on my Note 3.
bebseh said:
Hello
I do have deep sleep, pbbly +50% of the time,
However it does spend quite some time in 400mhz even when is idle.
is this normak ? i dont remember seeing the same behavior on my Note 3.
Click to expand...
Click to collapse
Well I have 98-99% deep sleep buy I'm also on a custom kernel + Rom without all the battery hungry apps like Facebook, messenger, Spotify and so on, so only thing that wake my phone from time to time is Google play services.
On stock Rom I mean I had around 50-70% so if you're using a lot of battery hungry apps (that wake your phone a lot) I think it's normal.
Hello everyone.
First of all, I'm sorry if I wasn't supposed to open a new thread. I've been searching all day, but couldn't find anything.
Here's the problem.
The device drains battery without any usage. almost 10% every hour.
I did install StryFlex LP ROM first and bought a new battery as well, so I thought maybe that ROM has a bug, but then I've flashed latest stock ROM and it's the same in the stock too.
I didn't install any app, didn't change anything in the settings, I've even used Airplane Mode, but no chance.
I've installed CPU Spy, it says the device is +95% on Deep Sleep!
But there is something strange. When I touched the upper side of the screen, I felt it's kinda warm. So I don't really know what's going on.
I've even fully discharged the battery and recharged it, but I don't think it's a battery issue, because the old battery has the same problem, but just worse.
Right now I'm on stock. 2h 12m on battery with 81% battery left. Screen has the most usage with 40%, with only 7 minutes time on! Cell standby 17% and Phone idle 12%.
Any help would be appreciated.
Thank you very much.
So no one knows any way!
I really don't understand what could be the problem; however I can confirm that the upper side of the screen is a little hot when the device is idle and on Airplane Mode.
The back camera doesn't work, could it use the power somehow?
I've installed CPU Temp app. It shows that when the device is on idle, CPU frequency goes all the way up! While CPU Spy says the device is deep sleeping!
I don't really know what to do. I wanted to disassemble the device so I could disconnect the back camera, but I didn't have the right screwdriver.
If you think it might help, please tell me, I will do it.